Recently, the Chinese men's football team received a "challenge", but the "challenge" was not issued by any national team, but by a copycat football team that claimed to defeat them. "The goal is to d...
So depressed... I've looked at Joyo and Dangdang, but can't find it. I guess it's because it's not selling well. Business comes first... :Q :Q :Q :'( :'( :'( I'll look for it tomorrow......
The second video corrected some mistakes in my previous video. First of all, the light source is not made with DLP, because DLP is not necessarily a micro-projector, and the resolution can also be hig...
[i=s]This post was last edited by 1nnocent on 2021-10-21 20:58[/i]The question is as shown in the picture. Picture 2 is the reference answer. The answer seems to be wrong.The answer to "1" seems to ha...
[i=s] This post was last edited by paulhyde on 2014-9-15 03:37 [/i] Can you bear it? :lol Quadcopter (Question B) Supplementary instructions The "flight control" mentioned in the instructions (2) of t...
I'm begging for a POWERPCB design rule. What are the parameters in the design rule? Design parameters for 2-layer and 4-layer boards. Thank you. I'm just getting started with layout. QQ:147550444 E_MA...
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[Details]
Since the No. 4 blast furnace of Handan Iron and Steel was put into operation in 1993, its external equipment has been seriously aged, and the original PLC control system TDC3000 of the hot blast furn...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
System Overview
The system consists of a signal preprocessing circuit, a single-chip computer AT89C2051, a systematic LED display module, a serial port data storage circuit and system software...[Details]
The emergence and development of street lamps are inseparable from the prosperity and progress of cities, which makes street lamps useful. Conversely, street lamps also make the night of the city n...[Details]
One in five car failures are caused by batteries, a problem that will become more serious in the coming years as electric-by-wire, start/stop engine management and hybrid (electric/gas) vehicles be...[Details]
The production process of lithium batteries does not mention the previous processes such as material preparation, winding, liquid injection, and packaging, but only talks about the final formation ...[Details]
DCDC means DC to DC (conversion of different DC power values). Anything that meets this definition can be called a DCDC converter. Specifically, it means converting the input DC into AC through a s...[Details]
This paper describes the design method of electronic multifunctional watt-hour meter, the key technology of hardware design and the software design process. Taking NEC's μPD78F0338 microcontroller ...[Details]